Abstracts of recent articles on mine support.

Bibliographic Details

Other Authors:	Crane, Walter R. (Walter Richard), 1870-
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [publisher not identified], 1932.
Series:	Mines Bur. Info. Circ. No. 6651
Subjects:	Mines and mineral resources. Electronic books.
Online Access:	Connect to the full text of this electronic document